Efficient data transfer with MibSPI and DMA

Nomo

Other Parts Discussed in Thread: TMS570LS3137

Hi,

I'm using TMDX570LS31USB (TMS570LS3137 is implemented),
and I want to transfer TG0 and TG1 data with MibSPI and DMA.
In ideal, once MibSPI and DMA setting are finished, no ARM processing is needed.

I've programmed in hope of working above processing,
however it doesn't work well.
TG0 looks transferring correctly, however TG1 isn't transferred.

Could you check my source code?

Finally, I want to embed each TG to TASK of FreeRTOS.
Is it possible?

Best Regards.

Nomoto

over 13 years ago

0 Nomo over 13 years ago

Guru 16800 points

I'm sorry, but my source file is missed.

Best Regards.

Nomoto

spidma_test.zip

0 Nomo over 13 years ago in reply to Nomo

Guru 16800 points

Incidentally, "main.c" is a main function.
The TX_DATA_TG0 array is transfer data and the RX_DATA_TG0 array is receive data, with TG0.
The TX_DATA_TG1 array is transfer data and the RX_DATA_TG1 array is receive data, with TG1.
The "load Data pattern" function and the "add_crc" function initialize those arrays.
The "dmaReqAssign" function, the "TX/RX_dmaConfigCtrlPacket" function, "dmaSetCtrlPacket" function and "dmaSetChEnable" are DMA setting.
The "mibspiDmaConfig" is DMA setting in MibSPI.
And then, the "misspiTransfer" function is a trigger of the MibSPI transfer.

Best Regards.

Nomoto

0 Sunil Oak over 13 years ago in reply to Nomo

TI__Mastermind 49120 points

Hello,

I will look into this today and get back to you.

Regards, Sunil

0 Haixiao Weng over 12 years ago in reply to Sunil Oak

TI__Genius 13810 points

Please let me know if RE: MIBSPI with DMA triggered from two tasks answered your question.

Regards,

Haixiao

0 Nomo over 12 years ago in reply to Haixiao Weng

Guru 16800 points

Hello Haixiao-san,

Thank you for your reply.
As you mentioned, my question may be answered.
However, I can't open your project, because your project is made with ARM compiler v5.1.0.
I can't get ARM compiler v5.1.0, because it is not released.
Could you re-upload your project with older ARM compiler (v5.0.1 or older)?

Best Regards

Nomoto

0 Haixiao Weng over 12 years ago in reply to Nomo

TI__Genius 13810 points

I changed the compiler version to 5.0.0 and verified the result in bench.

Let me know if you have any questions.

2275.forum6.zip

Thanks,

Haixiao

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Efficient data transfer with MibSPI and DMA